This 2015 X4 prototype doesn't reveal much new in regards to the X4's design – which we saw in concept form at the Shanghai auto show. The four-door crossover features a raked-back roofline like its X6 big brother, and is designed to offer a sportier alternative to the more traditional X3. Though still obscured by camo, we now have an almost complete look at the X4's profile, which reveals the same attractively sculpted sheetmetal as the Shanghai concept.The 2015 BMW X4's sportiness becomes most apparent when viewed next to the next-gen BMW X5 M and X6, both of which have big front intakes and purposeful, low-slung looks.

Like the BMW X3 prototype we spotted recently, the 2015 BMW X4 will be built in South Carolina, and powered by a 2.0-liter turbo-four making around 240 hp, with an optional 3.0-liter turbocharged I-6 pumping out 300 hp. The 2015 BMW X4 will likely debut early next year, and go on sale by the end of 2014.Image Credit: CarPix

BMW's crazed model proliferation is astounding. I would love to see the research that says BMW buyers require the choice of having the same model in 3" incremental variations. They certainly must be cannibalizing their own sales with this strategy.